Kemo M180 Waterproof marten (IP 65)

Function and effect known as Kemo products.
As in the car no space in the engine compartment is protected against splash water, more normal modules are already turned out quite quickly.
Hope waterproof module lasts longer (now 8 months since installed without problems).
To mention is that the signal can be heard every now and then. According to Kemo quite normal, since the covering membrane repeatedly produces a self-oscillation, which is in the audible range. This can be turned off according Kemo service by a diagonally mounted on the housing cable connector. I have not tried this, however, since I do not want to weaken ultrasonic sound.
The nocturnal raccoon out in the engine compartment have subsided significantly since the installation of Kemo Modules.